In Part 1 we introduced in the conceptual model (CM) the metalogical designation property . It represents—in the absence of known shared de...

 with David McGovern One purpose of our contributions here is to suggest a vocabulary that avoids confusion not just within the formal logic...

Note: This a revision of an earlier post RDM is an application to database management of mathematical relation theory (MRT) consistent wit...

Note: In "Setting Matters Straight" posts I debunk online pronouncements that involve fundamentals which I first post on Linked...

by David McGoveran with Fabian Pascal   Note: In "Setting Matters Straight" posts I debunk online Q&As that involve fundament...

 with David McGoveran  (Title inspired by Richard Feynman) In Part 1 we explained that all database relations are, mathematically, relation...

“The data in a relational database is stored in form of a table. A table makes the data look organized. Yet in some cases we might face issu...

Note: Each "Test Your Foundation Knowledge" post presents one or more misconceptions about data fundamentals. To test your know...

See: https://www.dbdebunk.com/2023/08/entities-properties-and-codds-sleight.html

Note: To demonstrate the correctness and stability of a sound foundation relative to the industry's fad-driven "cookbook" pra...

“The most popular data model in DBMS is the Relational Model. It is more scientific a model than others. This model is based on first-orde...

Note: This is a re-write of an earlier post. About TYFK posts (Test Your Foundation Knowledge) see the post insert below. “Here two or ...

  “We have Building, Room, and Bed entities. Logically, if this is in the scope of some hypothetical hotel, then each one of those entitie...

Revised 6/26/19. In Part 1 and Part 2 we explained that when the RDM (1969-70) and the E/RM (1976) were introduced, there was no distin...

In Part 1 and Part 2   we explained that between 1975-81, when the E/RM and RDM were introduced, there was no distinction between an inform...

Re-write 10/17/18 Revised 11/1/18 In Part 1 we explained that when the RDM and the E/RM were introduced, the distinct conceptual-logical-...

See: https://www.dbdebunk.com/2018/09/designation-property-and-assertion.html

(See Part 1 and Part 2 ) “A common term used in database design is a "relational database" -- but a database relation is not ...

Note: This is a re-write of two older posts (which now link here), to bring them into line with the McGoveran formalization and interpretat...

Note: This two part series is a rewrite of of an older post (which now links here), to bring it into line with the McGoveran formalization ...